Rare 1970s Sonia Rykiel Knit HatRare 1973 Sonia Rykiel knit head band hat in a light champagne yellow. Exposed head reminds me of a crown, great style! In many ways I see Sonia Rykiel as a woman who shook the fashion world in no lesser way than Coco Chanel. It was Sonia who championed the all black look, colourful knits, long boas and rhinestones. She taught women how to have fun with fashion. Measurements Circumference: 22" Height: 5. 5" Black and White image shows a similar piece